Eruptions of the Yellowstone volcanic system have included the two largest volcanic eruptions in North America in the past few million years; the third largest was at Long Valley in California and produced the Bishop ash bed.
On the diesel Passat, the TDI badge stands for Turbocharged Direct Injection, which isn't really all that helpful as the gasoline-powered Passat is also turbocharged and also uses direct injection. Volkswagen attempts to clear this up by calling this Passat the Passat TDI Clean Diesel.
The Optima GT is intended for the European market, and although Kia doesnât specifically say that the car wonât be sold in North America, it is heavily implied. The car being aimed at Europe actually follows Kiaâs previous GT models, the ceeâd GT and the 2014 Kia pro_ceeâd GT. We havenât gotten a GT version of those cars either, which are Europeâs versions of the 2014 Kia Forte5, but the Forte is just as fast without the GT suffix anyway.